Check out the following exercise, guaranteed to freak you out.
There's no trick or surprise. Just follow these instructions, and
answer the questions one at a time and as quickly as you can!
Again,
as quickly as you can but don't advance until you've done each of
them... really.
Now, arrow down (but not too fast,
you might miss something).........
What
is:
1+5
2+4
3+3
4+2
5+1
Now
repeat saying the number 6 to yourself as fast as you can for 15
seconds, then arrow down.
QUICK!!!
THINK OF A VEGETABLE!
Then arrow
down.
Keep
going.
You're
thinking of a carrot right?
If
not, you're among the 2% of the population whose minds are warped
enough to think of something else. 98% of people will answer with
carrot when given this exercise.